Joyce Defence Adhiambo Onyango
Data Scientist · Geospatial Analyst · MSc Geoinformatics Candidate
Based in Pretoria, South Africa. Open to Data Scientist and Geospatial roles in South Africa, Kenya, or remote.
About Me
Professional summary
I am a data scientist with a foundation in geospatial analysis, spatial data workflows, and quantitative analytics, supporting environmental, infrastructure, and development-focused initiatives. I have a proven ability to translate complex analytical findings into actionable insights for both technical and non-technical stakeholders.
My MSc thesis at the University of Pretoria applies deep learning and computer vision using Google Street View images to analyse urban walkability and accessibility to green public open spaces in the City of Tshwane.
Through roles at Esri Eastern Africa, Gloceps, and Swift Geospatial, I have delivered web & GIS solutions, automated spatial workflows, and built data pipelines that move from raw imagery to evidence that informs planning, conservation, and infrastructure decisions.
Who I Am
The traits that define my approach
Spatial Thinker
Skilled in GIS, remote sensing, and spatial analysis. I use maps to reveal patterns, risks, and opportunities invisible in raw data.
Research-Driven
My MSc research applies deep learning and computer vision to urban walkability, bridging academic knowledge and real-world impact.
Data Engineer
Committed to end-to-end geospatial pipelines: from raw satellite and street-level imagery to clean, production-ready spatial outputs.
Globally Minded
Professional experience across Kenya and South Africa, open to remote roles globally.
“The goal is to turn data into information, and information into insight.”— Carly Fiorina
Education
Academic background
Research thesis assessing geospatial accessibility of green spaces & community amenities applying deep learning and computer vision to analyse urban walkability
Specialised in spatial data analysis, remote sensing, GIS development, and applied geospatial methods.
Foundation in geoinformatics, spatial sciences, programming, and applied GIS across environmental and urban domains.
Technical Stack
Tools and technologies I work with
GIS & Remote Sensing
QGIS
Google Earth Engine
ENVI
GeoServer